[//lasso	define_tag(		'params',		-namespace='request_',		-priority='replace',		-description='Returns a map of the items in the request header.'	);		local('in') = client_headers;		#in->replace('\r\n','\r')&replace('\n','\r');		#in = #in->split('\r');				local('out' = map);				iterate(#in, local('i'));			local('name') = #i->split(':')->first;			local('value') = #i->removeleading(#name + ':')&trim&;			#out->insert(#name = #value);		/iterate;			return(@#out);	/define_tag;	define_tag(		'isajax',		-namespace='request_',		-priority='replace',		-description='Returns true if the request header specifies XMLHTTPRequest.'	);		request_params->find('X-Requested-With') == 'XMLHttpRequest' ? return(true) | return(false);	/define_tag;			define_tag(		'library',		-namespace='request_',		-description='Placeholder for tagloader compatibility.'	);		return('Loaded.');	/define_tag;]